WebNov 28, 2014 · (a) Governing equations. We consider a uniaxial active nematic liquid crystal in two dimensions. The two-dimensional limit is appropriate to describe the experiments by Sanchez et al.[], where the microtubule bundles confined to a water–oil interface form an effectively two-dimensional dense nematic suspension, but also of …

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WebOct 26, 2024 · Lattice Boltzmann simulations along with a diffuse interface model are used to simulate the capillary driven, symmetric spreading of a fluid drop on another fluid-fluid interface. While the equilibrium shapes of the drops with negative spreading coefficient are comprehensively represented on a phase diagram, the dynamics leading to equilibrium … WebUsing a combination of experiment and theory, we study how mechanical activity shapes soft interfaces of a phase separating mixture of an active and a passive fluid. Chaotic … high atc levels

Reaction Dynamics at Liquid Interfaces Annual Review of Physical ...

WebActivity as a means to switch the interaction between ±1/2 defects. Beyond the LC structure, activity also influences dynamics. In the absence of active stress ( c = 0 μm −2 ), defects of opposite charge experience an attractive interaction, as the elastic energy is reduced through annihilation of +1/2 and −1/2 defects ( Fig. 3A, top, and ... WebMay 2, 2016 · The active nematic/passive liquid crystal interface was prepared in a cylindrical pool of diameter 5 mm and depth 8 mm, manufactured with a block of poly-dimethylsiloxane (PDMS) using a custom mold. The block was glued onto a bioinert and superhydrophilic polyacrylamide-coated glass ( 35 ) (see SI Text for additional details … WebAbstract. Chemical composition and structure at atmospheric gas–liquid interfaces are key to understanding important chemical reaction cycles and nucleation processes. This chapter provides an introduction to X-ray excited electron spectroscopy to interrogate the surface of volatile liquid materials of atmospheric relevance. high atis meaning